CN115458969A - Fully shielded board-to-board connector and its components - Google Patents

Abstract

The invention discloses a full-shielding plate butt-plate connector, which comprises a body, a plurality of conductive terminals and a metal shell, wherein the conductive terminals and the metal shell are arranged on the body, the body is of a longitudinal structure, the body is provided with a longitudinal butt-joint groove and a plurality of terminal grooves communicated with the butt-joint groove, the conductive terminals are arranged in the terminal grooves of the body, the metal shell is provided with an outer wall frame which is of a stretching structure and surrounds the periphery, a bottom wall which is connected with at least one end of the outer wall frame, and a positioning part which is connected with the bottom wall and protrudes into the outer wall frame, the outer wall frame surrounds the outer side of the conductive terminals, the positioning part is provided with a side wall and a buckling part which is buckled on the body, the side wall is provided with clamping walls which are clamped on two sides of the body, and the buckling part is buckled on the end part of the body.

Description

Fully shielded board-to-board connector and its components

technical field

The invention relates to a fully shielded board-to-board connector and its components, in particular to a fully shielded board-to-board connector for electrical data transmission and its components.

Background technique

Board-to-board connectors play a very important role as a data transmission connection in electronic equipment. On the one hand, two circuit boards are connected to each other to achieve data transmission. On the other hand, the stacking thickness between circuit boards can also be reduced. However, the existing board-to-board connectors usually include a body, terminals held on the body and metal grippers held at both ends of the body. Since the conductive terminals are exposed outside, they will be interfered by external electronic signals during signal transmission. transmission of data. Later, a metal shell was fixed on the body to shield the terminals and prevent signal interference, but the metal shell was not strong enough to achieve a good shielding effect.

Therefore, it is desired to propose a new fully shielded board-to-board connector and its components to overcome the above-mentioned defects.

Contents of the invention

The object of the present invention is to provide a fully shielded board-to-board connector with full shielding effect and improved strength and its assembly.

In order to achieve the above object, the present invention adopts the following technical solution: a fully shielded board-to-board connector, including a body, several conductive terminals installed on the body and a metal shell, the body is in a longitudinal structure, and the body There is a longitudinal docking groove and several terminal grooves communicating with the docking groove, the above-mentioned conductive terminals are arranged in the terminal groove of the body, each terminal has a holding part held on the body, one end of the connecting holding part and The contact part protruding into the docking groove and the welding foot connected to the other end of the holding part; the metal shell has an outer wall frame with a tensile structure surrounded by it, a bottom wall connected to at least one end of the outer wall frame, and a bottom wall connected to the bottom wall and facing outward The positioning part protrudes inside, the outer wall frame surrounds the outer side of the conductive terminal, the positioning part has a side wall and a buckling part that is buckled on the body, and the side wall has clamping parts that are clamped on both sides of the body wall, and the buckling part is buckled on the end of the body.

A further improvement solution includes: the side wall has an end side wall located at the longitudinally outer end of the main body, and the above-mentioned buckling part is connected to the end side wall.

A further improvement solution includes: the two ends of the end side wall are respectively integrally connected with a pair of clamping walls, and extend upward from the bottom wall of the metal shell, and cover three sides of the end of the body.

A further improvement solution includes: the metal shell has a side edge wall connected to the top of the outer wall frame, and the side edge wall extends outward perpendicular to the outer wall frame.

A further improvement solution includes: an inclined guide portion is formed at the connection between the outer wall frame and the side edge wall.

A further improvement solution includes: the bottom wall is connected to three side walls at one end of the outer wall frame.

A further improvement is: the body has a bottom, a side wall protruding upward connecting the bottom, and a central island, the above-mentioned docking groove is formed between the side wall and the central island, and the end of the body is connected to the side The wall portion and the central island portion, and the bottom wall and the positioning portion are arranged as a pair at both ends of the central island portion.

A further improvement solution includes: the above-mentioned buckling part is located at the outer end side of the central island part.

A further improvement solution includes: the outer wall frame of the metal shell and the outer side and end side of the body jointly form a plug-in cavity.

In order to achieve the above purpose, the present invention can also adopt the following technical solutions: a fully shielded board-to-board connector assembly, which has a fully shielded board-to-board connector and a butt connector that is docked with the fully shielded board-to-board connector, The fully shielded board-to-board connector at least includes a body, several conductive terminals mounted on the body, and a metal shell. Several terminal slots connected by the slots, the above-mentioned conductive terminals are placed in the terminal slots of the body, each terminal has a holding portion fixed on the body, a contact portion connected to one end of the holding portion and protruding into the docking groove, and a connecting holding portion Welding feet at the other end; the metal shell has an outer wall frame with a tensile structure and surrounds it, a bottom wall connected to at least one end of the outer wall frame, and a positioning portion connected to the bottom wall and protruding inward from the outer wall frame, and the outer wall frame surrounds On the outside of the conductive terminal, the positioning part has a side wall and a buckling part buckled on the body, the side wall has clamping walls clamped on both sides of the body, and the buckling part is buckled on the body on the end. The docking connector has a docking body, a docking terminal held on the docking body, and a docking shell held on the docking body. The docking terminal and the above-mentioned terminals are connected to each other. The outer wall is accommodated in the outer wall frame and combined with the outer wall frame.

A further improvement solution includes: the docking shell has a docking wall protruding from the top surface of the docking body, and the docking wall is arranged facing the bottom wall of the metal shell.

Compared with the prior art, the present invention has the following beneficial effects: the metal shell of a fully shielded board-to-board connector in the present invention is formed by stretching, and is connected to the outer wall frame through the bottom wall, and There is a positioning part protruding into the outer wall frame, and the positioning part clamps the body to fix it, that is, the clamping walls on both sides clamp the body, and are buckled on the body by the buckle part, thereby increasing the strength of the metal shell and at the same time The combination stability of the metal shell and the body is improved to achieve multi-dimensional positioning effects. In addition, the stretched metal shell can achieve better strength, and the conductive terminals are enclosed in the outer wall frame, which also realizes all-round positioning. Shielding effect.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a fully shielded board-to-board connector assembly in a preferred embodiment of the present invention;

Fig. 2 is a three-dimensional schematic diagram of the fully shielded board-to-board connector shown in Fig. 1;

Fig. 3 is a schematic perspective view of another angle shown in Fig. 2;

Fig. 4 is a partially enlarged schematic diagram of the circle shown in Fig. 2;

Fig. 5 is a partially enlarged schematic diagram of the circle shown in Fig. 3;

Fig. 6 is a three-dimensional exploded view of the fully shielded board-to-board connector shown in Fig. 2;

Fig. 7 is a schematic diagram of the metal shell shown in Fig. 3;

Fig. 8 is a top view shown in Fig. 2;

Fig. 9 is a sectional view of line A-A shown in Fig. 8;

Fig. 10 is the sectional view of B-B line shown in Fig. 8;

Fig. 11 is a schematic perspective view of the docking connector shown in Fig. 1;

Fig. 12 is a partially enlarged schematic diagram of the circle shown in Fig. 11;

FIG. 13 is an exploded perspective view of FIG. 11 .

detailed description

Please refer to FIG. 1 , which is a fully shielded board-to-board connector assembly 100 disclosed in the present invention, including a fully shielded board-to-board connector 10 and a butt connector 20 docked with the fully shielded board-to-board connector. The two connectors are connected to each other to realize signal transmission. Full shielding means that the terminals are enclosed in a metal shell to reduce the signal interference from the outside to the terminals and improve the transmission speed. In this embodiment, the terminals and the body of the positioning terminal are set together Inside the metal shell, details will be given later.

Please refer to Figures 2 to 9, which are representative diagrams of the embodiment of the fully shielded board-to-board connector 10, including a body 11, several conductive terminals 12 and a metal shell 13 installed on the body, the body In a longitudinal structure, the body 11 has a bottom 110, a side wall 111 protruding upwards connected to the bottom, a central island 112 and an end 113 connected to the side wall and the central island. The side wall 111 The docking groove 114 is formed between the middle island portion 112 , and several terminal grooves 115 communicating with the docking groove are formed on the side wall portion 111 and the middle island portion 112 .

Please refer to FIG. 6 again, the conductive terminals 12 are placed in the terminal groove 115 of the body 11, each terminal 12 has a holding portion 121 fixed on the body, connected to one end of the holding portion and protrudes into the docking groove 114 The contact part 122 of the contact part 122 and the welding pin 123 connected to the other end of the holding part; The terminal 22 of the docking connector is connected, and one end of the elastic arm 124 is connected to the above-mentioned holding part 121, and the contact part 122 is arranged at the end of the elastic arm 124; In order to increase the overall length of the elastic arm, the contact stability of the contact portion 122 is further improved.

The metal shell 13 has an outer wall frame 130 with a tensile structure and surroundings, a bottom wall 131 connected to at least one end of the outer wall frame 130, a positioning portion 132 connected to the bottom wall and protruding inwardly of the outer wall frame 130, and a top wall connected to the top of the outer wall frame. side edge wall 133 . In this embodiment, the outer wall frame 133 is a tensile structure that is seamlessly connected around the circumference and forms an inner space 1300; the bottom walls 131 are arranged in a pair, and are respectively arranged at both ends of the outer wall frame 130, Therefore, the bottom wall 131 and the positioning part 132 are a pair arranged at the two ends of the central island part 112; Overall strength; in this embodiment, the bottom wall 131 is formed by stretching and drawing from the lower end of the outer wall frame 130 to improve the overall strength of the metal shell 13 and also ensure the bonding strength between the metal shell 13 and the body; The side edge wall 133 is perpendicular to the outer wall frame 130 and extends outward. The outer wall frame 130 of the metal shell and the outer side and end side of the main body 11 jointly form a plug-in cavity 101 to accommodate the side wall 211 and the end wall 210 of the docking connector, and the plug-in cavity 101 is arranged in a ring shape, thereby , the above-mentioned end portion 113 is provided with a recess 1130 to form an annular insertion cavity 101 , and at the same time, also increase the bonding strength of the connection between the side wall portion 111 and the middle island portion 112 .

In this embodiment, the outer wall frame 130 surrounds the outer peripheral side of the conductive terminal 12, the positioning part 132 has a side wall 135 and a buckling part 136 buckled on the body, and the side wall 135 has a The end side wall 137 at the long outward end and the clamping wall 138 on both sides of the above-mentioned body 11 are clamped. It is held on the outer end side of the central island portion 112 and accommodated in the opening 1131 of the end portion 113, so that the main body 11 is sandwiched by the side wall 135 and the end side wall 137 of the metal shell 13, forming a stable connection between the two sides and the end side. Positioning (that is, horizontal and vertical positioning shown in FIG. 8 ), moreover, the buckling portion 136 is buckled on the body 11 , which further enhances the bonding strength between the metal shell 13 and the body 11 .

In this embodiment, the two ends of the end side wall 137 are integrally connected with a pair of clamping walls 138 respectively, and extend upward together from the bottom wall 131 of the metal shell 13, and cover three ends of the body. The side surface forms an all-round positioning effect and also increases the overall strength of the positioning portion 132 ; the above-mentioned buckling portion 136 is connected to the end side wall 137 . An inclined guide portion 139 is formed at the connection between the outer wall frame 130 and the side edge wall 137 to guide the mating connector to be inserted into the fully shielded board-to-board connector 10 .

Please refer to 11 to 13, the docking connector 20 has a docking body 21, a docking terminal 22 held on the docking body 21 and a docking housing 23 held on the docking body, the docking terminal 22 and the above-mentioned conductive The terminals 12 are connected to each other to realize data transmission.

The docking body 21 has a pair of end walls 210 and a pair of parallel side walls 211 connected between the end walls 210, the side walls 210 extend along the longitudinal direction, each side wall 211 is provided with several terminal slots 212, the above The butt terminals 22 are disposed in the terminal slots 212 . In this embodiment, the bottom of the pair of side walls 211 is not connected to each other, that is, there is no bottom wall at the lower end, and the pair of side walls 211 are completely spaced apart to reduce the height of the mating connector 20 and achieve ultra-thinning. Further reduce the thickness of the electronic device; the two sides of the end wall 210 protrude from the outside of the side wall, that is, the width of the end wall 210 is greater than the width between the two side walls 211, which facilitates the combination of the end wall 210 and the docking shell 23, In order to improve the combination stability of the docking body 21 and the docking shell 23 .

The docking housing 23 has an outer wall 231 with a tensile structure and surrounds it, an extension wall 232 protruding outward perpendicular to the outer wall, a docking wall 233 protruding from the top surface of the docking body 21, and connecting the two ends of the outer wall and protruding from a The bending piece 234 between the pair of side walls 211, the outer wall 231 is accommodated in the outer wall frame 130 of the fully shielded board-to-board connector 10, and is combined with the outer wall frame 130 to achieve the effect of common shielding, and increases Mating stability when two connectors are mated. The butt wall 233 is set facing the bottom wall 131 of the metal shell 13 to increase the strength of the two connectors when they are mated and to prevent the butt connector from squeezing and damaging the fully shielded board-to-board connector when inserted. , to prolong the service life of the two connectors. In addition, before docking, the extension wall 232 is in contact with the side edge wall 133 of the fully shielded board-to-board connector 10 to prevent the contact between the metal shell and the body, so as to realize the docking of the two connectors through the cooperation between the metals. strength, and guide the mating connector to be inserted into the fully shielded board-to-board connector 10 through the guide portion 138, and realize signal transmission between the two connectors after complete mating. The bent piece 234 is located on the inner side of the end wall 210 so as to cooperate with the side wall 135 to improve the matching strength.

A hollow portion 213 is provided between the side wall 210 and the outer wall 231 of the docking housing. The docking terminal 22 has a docking holding portion 220 held on the docking body 21, a docking contact portion 221 connected to one end of the docking holding portion and protruding out of the terminal groove 212, and a butt welding foot 222 connected to the other end of the docking holding portion. The welding feet are located in the above-mentioned hollow part 213, so that the butt welding feet 222 are completely arranged in the butt shell 23, forming a complete shielding effect.

A fully shielded board-to-board connector 10 of the present invention uses the metal shell 13 as a tensile structure to form a seamlessly connected outer wall frame 130, which is surrounded by the conductive terminals 12 to realize a fully shielded board The board-to-board connector is connected to the outer wall frame 130 through the bottom wall 131, and a positioning part 132 protrudes from the bottom wall 131 to the outer wall frame 130, so as to be clamped and fixed with the main body 11 by the positioning part 132 to increase the metal The strength of the shell 13 is improved, and the combination stability between the metal shell 13 and the main body 11 is improved. That is, a fully shielded board-to-board connector 10 includes a body 11, several conductive terminals 12 mounted on the body and a metal shell 13. The body is in a longitudinal structure, and the body 11 is provided with a longitudinal The docking groove 114 and several terminal grooves 115 communicating with the docking groove, the above-mentioned conductive terminals 12 are placed in the terminal grooves 115 of the body, each conductive terminal 12 has a holding part 121 held on the body 11, a connecting holding part One end protrudes into the contact part 122 of the docking groove and the welding foot 123 connected to the other end of the holding part; the metal shell 13 has an outer wall frame 130 surrounded by a tensile structure, and a bottom wall 131 connected to at least one end of the outer wall frame 130 And the positioning part 132 connected to the bottom wall and protruding in the outer wall frame. The outer wall frame 130 surrounds the outside of the conductive terminal 12. The positioning part 132 has a side wall 135 and a buckling part 136 buckled on the body. The side wall 135 has clamping walls 138 clamped on both sides of the body, and the buckling portion 136 is buckled on the end portion 113 of the body 11 .

In this embodiment, the side wall 135 has an end side wall 137 located at the longitudinally outer end of the main body, and the above-mentioned buckling portion 136 is connected to the end side wall 137 . The two ends of the end side wall 137 are integrally connected with a pair of clamping walls 138 respectively, and extend upward from the bottom wall 131 of the metal shell 13, and cover the three sides of the end portion 113 of the body, thereby realizing multiple orientations. Positioning clamp. In addition, the bottom wall 131 connects three side walls at one end of the outer wall frame 130 to increase the overall strength.

Furthermore, the fully shielded board-to-board connector assembly 100 has a fully shielded board-to-board connector 10 and a docking connector 20 docked with the fully shielded board-to-board connector. The docking connector has a docking body 21, The docking terminal 22 held on the docking body and the docking shell 23 held on the docking body, the docking terminal 22 is connected to the above-mentioned conductive terminal 12, the docking shell 23 has an outer wall 231 with a tensile structure and surrounding The outer wall 231 is accommodated in the outer wall frame 130 and combined with the outer wall frame 130. The docking housing 23 and the outer wall frame 130 jointly shield the docking terminal 22 and the conductive terminal 12, so as to realize the stability of signal transmission between the two terminals. Prevent interference from external signals.

The docking shell 23 has a docking wall 233 protruding from the top surface of the docking body 21, and the docking wall 233 is drawn from the outer wall 231; They are arranged facing each other to increase the strength when the butt connector 20 is docked with the fully shielded board-to-board connector 10 to prevent extrusion deformation, and the butt wall 233 is stretched and drawn from the outer wall 231 to improve the strength of the butt wall.

In summary, the above are only preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, any simple equivalent changes and modifications made according to the claims of the present invention and the contents of the description should all be Still belong to the scope that the patent of the present invention covers.

Claims (11)

1. A fully shielded board-to-board connector, comprising a body, several conductive terminals mounted on the body and a metal shell, the body is in a longitudinal structure, and the body is provided with a longitudinal docking groove and a The docking groove is connected to several terminal grooves, the above-mentioned conductive terminals are arranged in the terminal groove of the body, each terminal has a holding part fixed on the body, a contact part connected to one end of the holding part and protruding into the docking groove, and a connection The welding foot at the other end of the holding part; it is characterized in that: the metal shell has a tensile structure and is surrounded by an outer wall frame, a bottom wall connected to at least one end of the outer wall frame, and a positioning part connected to the bottom wall and protruding inward from the outer wall frame , the outer wall frame surrounds the outer side of the conductive terminal, the positioning part has a side wall and a buckling part buckled on the body, the side wall has a clamping wall clamped on both sides of the body, the buckle The part is buckled on the end of the body. 2 . The fully shielded board-to-board connector according to claim 1 , wherein the side wall has an end side wall located at the longitudinally outer end of the main body, and the locking portion is connected to the end side wall. 3 . 3. The fully shielded board-to-board connector according to claim 2, characterized in that: the two ends of the end side wall are respectively integrally connected with a pair of clamping walls, and extend upward from the bottom wall of the metal shell, and Covering the three sides of the end of the body. 4 . The fully shielded board-to-board connector according to claim 3 , wherein the metal shell has a side edge wall connected to the top of the outer wall frame, and the side edge wall is perpendicular to the outer wall frame and extends outward. 5 . The fully shielded board-to-board connector according to claim 4 , wherein an inclined guide portion is formed at the connection between the outer wall frame and the side edge wall. 6 . 6. The fully shielded board-to-board connector according to claim 1, wherein the bottom wall is connected to three side walls at one end of the outer wall frame. 7. The fully shielded board-to-board connector according to any one of claims 1 to 6, characterized in that: the body has a bottom, a side wall protruding upward from the connecting bottom and a central island, the side wall The above-mentioned docking groove is formed between the upper part and the middle island part, the end part of the above-mentioned body is connected to the side wall part and the middle island part, and the bottom wall and the positioning part are arranged as a pair at both ends of the middle island part. 8 . The fully shielded board-to-board connector according to claim 7 , wherein the buckling portion is located at the outer end side of the central island portion. 9 . The fully shielded board-to-board connector according to claim 3 , wherein the outer wall frame of the metal housing together with the outer side and the end side of the body form a plugging cavity. 10 . 10. A fully shielded board-to-board connector assembly, which has a fully shielded board-to-board connector according to any one of claims 1 to 6 and a butt connector that is docked with the fully shielded board-to-board connector, the butt joint The connector has a docking body, a docking terminal held on the docking body, and a docking shell held on the docking body, the docking terminal is connected to the above-mentioned terminal, and the docking shell has a tensile structure and a surrounding outer wall, The outer wall is accommodated in the outer wall frame and combined with the outer wall frame. 11. The fully shielded board-to-board connector assembly according to claim 10, wherein the docking housing has a docking wall protruding from the top surface of the docking body, and the docking wall faces the bottom wall of the metal housing pair settings.

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